BOLD MAGENTA part numbers are new for 2025 PARTS-UNLIMITED.COM 2025 | OFFROAD ENGINE ENGINE 1244 DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 4-6 FOR CATEGORY CODES, IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. PRODUCTS NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES IF NOT CATEGORIZED AS “1” OR “4”. 0926-3093 STAINLESS STEEL CONVERSION VALVE AND SPRING KITS (CONT) FITS MODEL DESCRIPTION VALVE LIFT PART # KAWASAKI KX250F 03-16 Intake 0.445” 0926-0452 KX250F 17-19 Intake (titanium valves) 0.415” 0926-3154 KX250 20-21 Intake 0.450” 0926-3386 KTM 250 (for RC4 engines) 08-11 Intake 0.425” 0926-2736 250 XCF-W 12-13 Intake 0.425” 0926-2736 450 XC-F 13-17, 450 SX-F 13-18 Intake 0.435” 0926-3093 FITS MODEL DESCRIPTION VALVE LIFT PART # SUZUKI RM-Z250 07-17 Intake 0.445 0926-2663 YAMAHA YZ/WR250F 01-13 Intake 0.380” 0926-2737 YZ250F 14-18 Intake (titamium valves) 0.425” 0926-2678 YZ250F 19-25 Intake 0.420” 0926-3177 WR450F 03-16 Intake 0.380” 0926-2739 YZ450F 03-09 Intake 0.380” 0926-2739 YZ450F 14-19/FX 14-20 Intake 0.450” 0926-2920 FITS MODEL PART # HUSQVARNA FC 450 14-18, FS 450 17-18, FX 450 17 0926-3042 FITS MODEL PART # KTM 450 SX-F 13-18, 450 XC-F 13-17 0926-3042 LIGHTWEIGHT RACING BEEHIVE VALVE SPRING KIT • Progressively wound springs using Kobe super-clean, chrome silicon-based wire that is heat-treated and shot-peened • Tight tolerance, EFA-designed and hardened steel Psi-Loc™ style titanium retainers to ensure correct assembly height and resist keeper “pull-through” • H.T. steel base washers and spring shims • Specifications: installed seat height 1.355” to 1.365”, seat pressure 80 lbs., open seat pressure @ 0.410” lift 198 lbs., open seat pressure @ 0.435” lift 235 lbs., maximum valve lift 0.435” •Made in the U.S.A. FITS MODEL DESCRIPTION PART # HONDA CRF250L/RL 13-20 Intake/exhaust: 1.190” installed height, 49 lbs. seat pressure, 160 lbs. open pressure, 0.390” lift 0926-3285 CRF250R/RX 18-21 Intake: 1.295” installed height, 70 lbs. seat pressure, 209 lbs. open pressure, 0.435” lift; Exhaust: 1.290” installed height, 60 lbs. seat pressure, 162 lbs. open pressure, 0.400” lift 0926-3377 CFR450 R/RX/WE 17-21 Intake: 1.340” installed height, 50 lbs. seat pressure, 162 lbs. open pressure, 0.440” lift; Exhaust: 1.360” installed height, 220 lbs. open pressure, 0.405” lift 0926-3087 KAWASAKI KX250F 17-19 Intake: 1.320” installed height, 65 lbs. seat pressure, 181 lbs. open pressure, 0.415” lift; Exhaust: 1.315” installed height, 49 lbs. seat pressure, 155 lbs. open pressure, 0.415” lift 0926-3092 KX250 20-21 Intake: 1.325” installed height, 60 lbs. seat pressure, 204 lbs. open pressure, 0.450” lift; Exhaust: 1.340” installed height, 50 lbs. seat pressure, 165 lbs. open pressure, 0.450” lift 0926-3385 YAMAHA WR/YZ250F 14-18 Intake: 1.150” installed height, 55 lbs. seat pressure, 151 lbs. open pressure, 0.395” lift; Exhaust: 1.095” installed height, 46 lbs. seat pressure, 119 lbs. open pressure, 0.370” lift 0926-3161 YZ250F 19-25 Intake: 1.315” installed height, 69 lbs. seat pressure, 187 lbs. open pressure, 0.420” lift; Exhaust: 1.160” installed height, 52 lb. seat pressure, 149 lbs. open pressure, 0.400” lift 0926-3176 LIGHTWEIGHT RACING VALVE SPRING KITS •Designed to outperform and outlast the factory valve springs • Kit features lightweight, high-strength CrSi valve springs, H.T. steel base washers and titanium spring retainers •Complete kit; everything you need to for a complete valve spring swap 0926-3285
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